Drilling Continues to Expand Cerro Caliche GOLD Mineralization
DRILLING CONTINUES TO EXPAND CERRO CALICHE GOLD MINERALIZATION
VANCOUVER, Canada, May 28, Sonoro Metals Corp., (TSXV: SMO | OTCQB: SMOFF | FRA: 23SP), (“Sonoro”
and the “Company”), reports that drilling at Cerro Caliche continues to confirm and expand the gold and
silver mineralization within the Central Zone and at several satellite zones previously identified by earlier
drilling. Average gold grades of intervals reported are observed to be similar to existing heap leach mining
operations in the region.
Highlights from the latest 20 holes of the Phase Two program reported here include:
‒ Japoneses infill hole SCR-064 returned 1.257 g/t AuEq over 9.15m
‒ La Espanola scout hole SCR-068 returned 6.179 g/t AuEq over 3.05m and 1.327 g/t AuEq over 9.14m
‒ Guadalupe step-out hole SCR-061 returned 0.559 g/t AuEq over 15.24m
‒ Chinos Altos scout hole SCR-069 hole returned 1.142 g/t AuEq over 7.6 m
‒ Buena Suerte step-out hole SCR-062 returned 1.064 g/t AuEq over 10.67m & 0.742 g/t AuEq over
10.67m
“With almost 90% of the 10,000-meter drill program completed, we are pleased to report that the
objectives of the technical program at Cerro Calich e have been accomplished,” said Kenneth MacLeod,
President and CEO. “Most critically, the program co ntinues to outline shallow low-grade bulk tonnage
gold mineralized zones with gold grades and intervals similar to operating heap leach mines in the region.
We have conducted sufficient infill drilling at the Central Zones surrounding Japoneses and El Colorado to
enable the commissioning of an NI-43-101 technical report and we have identified several highly-
prospective mineralized zones within a 2 kilometer radius from the Central Zones, which will be drilled in
future programs to confirm their economic potential.”
Two drill holes have defined gold mineralization to the west at the Guadalupe zone. The most significant
was SCR-061 which intercepted 15.24 meters with an average grade of 0.519 g/t Au beginning at 36.58
meters. At the Espanola vein zone, one kilometer east of the Japoneses zone, drill hole SCR-068 tested
the easternmost extent of Cerro Caliche’s known min eralization cutting multiple gold mineralized
intervals of 3.05 meters with 6.131 g/t Au and 3.4 g/t Ag. In the same drill hole are other intervals
including 9.14 meters with 1.25 g/t Au and 5.4 g/t Ag.
The remaining drill holes reported are within, or peripheral to, the Japoneses Central mineralized zone.
These include two drill holes, SCR-062 (north-end extension) and SCR-063 (south end extension), in the
Buena Suerte vein area where SCR-062 has 10.67 meters of 0.714 g/t Au and 24.5 g/t Ag from 1.52 meters
to 12.19 meters depth, followed by 10.67 meters from 16.76 to 27.43 meters with 0.675 g/t Au and 4.7
g/t Ag. SCR-063 contains 12.2 meters with 0.442 g/ t Au with 4.7 g/t Ag from 32 to 44.2 meters. This
developing Buena Suerte vein zone now has about 200 meters of strike length located near the NW corner
of the Japoneses Central area.
Drill hole SCR-064 tested the northernmost extent of the Japoneses vein zone. Beginning at 35.05 meters,
it intercepted 9.15 meters averaging 1.231 g/t Au and 1.8 g/t Ag with other smaller intervening intervals
nearer to the surface. Approximately 150 meters directly south of SCR-064, hole SCR-065 also intercepted
the zone. Beginning at 1.52 meters it reported 27.44 meters of gold mineralization with an average grade
of 0.819 g/t Au and 9.2 g/t Ag. At the Chinos NW zone, which is parallel to the eastern side of the centrally
located Japoneses zone, SCR-066 intercepted 6.1 meters averaging 0.503 g/t Au and 1.4 g/t Ag, beginning
at 24.38 meters.
To the south of the Japoneses zone, the Chinos Alto s vein zone, which is notable for its pervasive
mineralized stockworks, was tested by holes SCR-067 through SCR-071. This large stockwork zone
contains gold in a broad area of stockwork quartz veining and will be tested in more detail in later drilling
campaigns. These last four drill holes reported large zones of +0.1 g/t levels of gold mineralization. SCR-
067 reports intervals of 4.58 meters and 6.09 meter s with respectively 0.258 g/t Au and 0.28g/t Au
beginning at 9.14 meters. SCR-069 reports 7.62 meters from 28.96 to 36.58 meters of 0.947 g/t Au with
13.6 g/t Ag. SCR-070 intercepted gold mineralization of 3.05 meters averaging 0.19 g/t Au, beginning at
a depth of 18.29 meters. SCR-071 reported an interval of 6.1 meters from 9.14 to 15.24 meters with an
average of 0.44 g/t Au and 6.2 g/t Ag. Drill holes SCR-072, 073, and 075 through 080 are located along
the eastern edge of the Japoneses mineralized zone into Chinos NW, an area not previously recognized as
having potential gold mineralization, but notable i ntercepts of stockwork mineralization were cut as
exemplified in SCR-078 with 24.38 meters of 0.461 g/t AuEq. Drill hole SCR-074 is angled southwest from
the collar of SCR-075 cutting stockwork mineralization with the first 24 meters being mineralized; where
part of that zone intercepted 15.24 meters averaging 0.337 g/t Au starting from a depth of 9.14 meters.
SCR-072 intersected 15.24 meters between 3.05 meters and 18.29 meters averaging 0.574 g/t Au and 3
g/t Ag. These holes were drilled for more definition in preparation for future resource estimations.
To view a map of all the drill holes, please click here and to view a map of the drill holes in the Centra l
Zones please click here or visit the Sonoro website at www.sonorometals.com
The Phase Two drilling program is ongoing, and the company will report additional drill results when
received and processed. Together with the earlier drilling results announced in Sonoro’s news releases
dated November 9, 2018; December 5, 2018; January 16, 2019; and April 28, 2019, the combined results
from the drilling program confirm shallow, low grade, bulk tonnage, gold mineralized zones in supergene
oxidized sedimentary and igneous rock units. Subject to metallurgical confirmation, the gold mineralized
zones appear amenable to heap leach extraction of precious metals with deep oxidation. This Phase Two
drill program further expands the Cerro Caliche’s m ineralized gold zones while showing continuity of
grade and continuing to support the existence of a broadly mineralized low-sulphidation epithermal vein
system with the potential to develop a large tonnage resource suitable for open pit mining. The company
notes that the average gold grades of intervals reported to date are similar to existing heap leach mining
operations in the region.
A total of 4192.6 meters has been drilled and assay ed to date in the Phase Two program, bringing the
total drilled by Sonoro for the projected 10,000-me ter program to 8796.4 meters. The combination of
historic and current exploration now totals more than 20,000 meters in 196 drill holes in addition to 6,000
surface samples.
Mineral intercepts presented for the Phase Two drill holes are shown in the table below.
CERRO CALICHE PROJECT - HOLES COMPOSITES WITH CUTOFF 0.15 g/t Au
Hole Target
From To Interval Au Ag AuEq
(meters) g/t g/t g/t
SCR-060 GUADALUPE 59.44 60.96 1.52 0.176 3.9 0.232
SCR-061 GUADALUPE 36.58 51.82 15.24 0.519 2.8 0.559
and 91.44 97.54 6.1 0.426 2.8 0.466
SCR-062 BUENA SUERTE
1.52 12.19 10.67 0.714 24.5 1.064
and 16.76 27.43 10.67 0.675 4.7 0.742
and 39.62 44.2 4.58 0.277 1.9 0.305
SCR-063 BUENA SUERTE
32 44.2 12.2 0.442 4.7 0.51
and 50.29 57.91 7.62 0.227 4.8 0.295
and 64.01 68.58 4.57 0.41 5.3 0.486
SCR-64 JAPONESES
6.1 10.67 4.57 0.384 22.1 0.7
and 13.72 16.76 3.04 0.639 22.8 0.964
and 35.05 44.2 9.15 1.231 1.8 1.257
includes 35.05 41.15 6.1 1.759 2.5 1.796
and 53.34 59.44 6.1 0.275 0.9 0.288
SCR-065 JAPONESES
1.52 28.96 27.44 0.819 9.2 0.95
and 36.58 39.62 3.04 1.852 17.9 2.107
and 47.24 53.34 6.1 0.209 1.2 0.226
and 59.44 64.01 4.57 0.231 0.7 0.241
and 89.92 118.87 28.95 0.378 2.3 0.411
SCR-066 CHINOS NW 0 6.1 6.1 0.495 4.7 0.562
and 24.38 30.48 6.1 0.503 1.4 0.522
SCR-067 CHINOS ALTOS 9.14 13.72 4.58 0.258 0.7 0.269
and 21.34 27.43 6.09 0.282 2.3 0.315
SCR-068 LA ESPANOLA
15.24 18.29 3.05 6.131 3.4 6.179
and 36.58 42.67 6.09 0.192 1 0.207
and 60.96 65.53 4.57 0.517 1.8 0.543
and 83.82 92.96 9.14 1.250 5.4 1.327
and 99.06 103.63 4.57 0.494 1.4 0.515
SCR-069 CHINOS ALTOS 28.96 36.58 7.62 0.947 13.6 1.142
SCR-070 CHINOS ALTOS 18.29 21.34 3.05 0.193 0 0.193
SCR-071 CHINOS ALTOS 9.14 15.24 6.1 0.44 6.2 0.53
SCR-072 JAPONESES
3.05 18.29 15.24 0.574 3 0.616
and 22.86 30.48 7.62 0.316 1 0.33
and 42.67 45.72 3.05 0.214 0.5 0.222
and 64.01 68.58 4.57 0.206 0.3 0.21
CERRO CALICHE PROJECT - HOLES COMPOSITES WITH CUTOFF 0.15 g/t Au
Hole Target
From To Interval Au Ag AuEq
(meters) g/t g/t g/t
SCR-073 JAPONESES 33.53 35.05 1.52 0.235 0.9 0.248
SCR-074 JAPONESES
0 6.1 6.1 0.23 1.3 0.249
and 9.14 24.38 15.24 0.337 2.8 0.377
and 120.4 137.16 16.76 0.268 2 0.297
and 146.26 163.07 19.81 0.363 1.4 0.383
SCR-075 JAPONESES
24.38 41.15 16.77 0.215 1.3 0.233
and 53.34 57.91 4.57 0.345 0.8 0.356
and 88.39 91.44 3.05 0.368 0.3 0.372
SCR-076 JAPONESES
9.14 30.48 21.34 0.311 6.3 0.401
and 39.62 44.2 4.58 0.643 1.9 0.67
and 51.82 56.39 4.57 0.535 4.1 0.594
and 108.2 114.3 6.1 0.614 1.7 0.638
SCR-077 CHINOS NW
10.67 13.72 3.05 0.185 3 0.228
and 18.29 22.86 4.57 0.346 3.6 0.397
and 77.72 79.25 1.53 0.429 0.9 0.442
SCR-078 CHINOS NW 0 24.38 24.38 0.344 8.2 0.461
SCR-079 CHINOS NW
10.67 12.19 1.52 0.185 7.3 0.289
and 16.76 22.86 6.1 0.311 7.5 0.418
and 27.43 39.62 12.19 0.442 3.6 0.494
and 44.2 45.72 1.52 0.209 0.6 0.218
and 51.82 54.86 3.04 0.292 1 0.305
and 57.91 59.44 1.53 0.237 0.9 0.25
and 65.53 70.1 4.57 0.21 1.7 0.234
SCR-080 CHINOS NW
1.52 4.57 3.05 0.221 3 0.264
and 9.14 16.76 7.62 0.355 6.1 0.443
and 19.81 22.86 3.05 0.197 0.9 0.21
and 41.15 42.67 1.52 0.794 1.1 0.81
All drill holes completed are RC type drill holes w ith 45 degrees inclination to either the southwest or
northeast within vertical section planes with north 60 degrees east orientation. True drill intercept widths
are considered near the reported drill widths rangi ng to 75% of drilled widths unless noted otherwise.
Most vein zones have a north 30 west trends with 45 to 70 dips to the northeast.
Quality Assurance/Quality Control (“QA/QC”) Measures and Analytical Procedures
Drill samples are collected with an airstream cyclone and passed into a splitter that divides each sample
into quarters. The quartered samples are then bagged and sealed with double identification. The sample
group has blanks, standards and duplicates inserted into the sample stream. ALS-Chemex collects the
samples and transports them directly to the preparation laboratory in Hermosillo, Sonora.
At the laboratory, part of each sample is reduced through crushing, splitting and pulverization from which
200 grams is sent to the ALS-Chemex assay laboratory in Vancouver. Thirty grams undergoes fire assay for
gold with the resulting concentrated button of mate rial produced is dissolved in acids, and the gold i s
determined by atomic absorption. Another quantity of the sample is dissolved in four acids for an ICP
multi-element analysis. Standards are also inserted into the groups for analyses by ALS-Chemex.
Geologic Description
Cerro Caliche is located 45 kilometers east southeast of Magdalena de Kino in the Cucurpe-Sonora Mega-
district of Sonora, Mexico. Multiple historic under ground mines were developed in the concession
including Cabeza Blanca, Los Cuervos, Japoneses, La s Abejas, Boluditos, El Colorado, Veta de Oro and
Espanola. Mineralization types of the Cucurpe-Sonora Mega-district include variants of epithermal low
sulfidation veins and related mineralized dikes and associated volcanic domes. Local altered felsic dikes
cut the mineralized meta-sedimentary rock units and may be associated with mineralization both in the
dikes and meta-sedimentary rocks. The Cucurpe-Sonora Mega-district has historically been regarded as
vein dominated, but recently, open pit mining opera tions have been developed on disseminated and
stockwork style gold mineralization.
Host rocks include Jurassic-Cretaceous meta-sedimentary rock units including argillite, shale, quartzi te,
limestone, quartz pebble conglomerate and andesite. Younger intrusive rock consisting of medium coarse-
grained granodiorite-granite is present in the westerly parts of the concessions near the historic Cabeza
Blanca mine. It is apparent that veining cuts and pervasively alters the intrusive stock. Rhyolite occurs in
irregular bodies distributed in higher elevations i n the northerly part of the concession, including t he
Rincon area, where it occurs as flows, sills, dikes and rhyolite domes. Part of the rhyolite is minera lized
and appears to be related to epithermal gold mineralization throughout the property.
Stephen Kenwood, P. Geo., a director of Sonoro, is a Qualified Person within the context of National
Instrument 43-101 and has read and approved this news release. Readers are cautioned that the presence
of mineralization on historic mines adjacent to or on Cerro Caliche is not necessarily indicative of g old
mineralization in the concessions held by the company.
About Sonoro Metals Corp.
Sonoro Metals Corp. is a publicly listed exploration and development company with two exploration stage
precious metal properties in Sonora State, Mexico. The company has highly experienced operational and
management teams with proven track records for the discovery and development of natural resource
deposits.
On behalf of the Board of SONORO METALS CORP.
Per: “Kenneth MacLeod”
KENNETH MACLEOD
President & CEO
For further information, please contact:
Sonoro Metals Corp. - Corporate Communications:
Bill Campbell – Tel: (604) 565-5609
Email: [email protected]
Forward-Looking Statement Cautions: This press release contains certain "forward-lookin g statements" within the meaning of Canadian
securities legislation, relating to, among other th ings, the Company's plans for the drilling of the a bove-described Cerro Caliche
Concessions, located in the municipality of Cucurpe , Sonora, Mexico, and the Company’s future explorat ion plans for those properties.
Although the Company believes that such statements are reasonable based on current circumstances, it c an give no assurance that such
expectations will prove to be correct. Forward-look ing statements are statements that are not historic al facts; they are generally, but not
always, identified by the words "expects," "plans," "anticipates," "believes," "intends," "estimates," "projects," "aims," "potential," "goal,"
"objective," "prospective," and similar expressions, or that events or conditions "will," "would," "may," "can," "could" or "should" occur,
or are those statements, which, by their nature, re fer to future events. The Company cautions that for ward-looking statements are based
on the beliefs, estimates and opinions of the Compa ny's management on the date the statements are made and they involve a number of
risks and uncertainties, including the possibility of unfavourable interim exploration results, the lack of sufficient future financing to carry
out exploration plans, and unanticipated changes in the legal, regulatory and permitting requirements for the Company’s exploration
programs. There can be no assurance that such state ments will prove to be accurate, as actual results and future events could differ
materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements.
The Company disclaims any intention or obligation t o update or revise any forward-looking statements, whether as a result of new
information, future events or otherwise, except as required by law or the policies of the TSX Venture Exchange. Readers are encouraged
to review the Company’s complete public disclosure record on SEDAR at www.sedar.com.
THIS PRESS RELEASE DOES NOT CONSTITUTE AN OFFER TO SELL, OR THE SOLICITATION OF AN OFFER TO BUY, NOR S HALL
THERE BE ANY SALE OF SECURITIES OF THE COMPANY IN A NY JURISDICTION IN WHICH SUCH OFFER, SOLICITATION O R SALE
WOULD BE UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH JURISDICTION.
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